LESION IN SENSORY SYSTEM
LESIONS | CAUSES | MANIFESTATIONS |
Peripheral nerve A)Mononeuropathy | Lesion of one peripheral nerve | Loss of all sensation supplied by it |
B)polyneuropathy | Lesion of all peripheral nerves - diabetic - peripheral neuritis | Loss of all sensation -GLOVE AND STOCKING LOSS |
C)Herpes Zoster | Herpes virus infect DRG | irritation of pain afferent migrate toward peripheral axon =rash +vesicular formation |
Spinal cord A)Tabes Dorsalis | Neurosyphilitic Attack dorsal root center to DRG | Atrophy of Dorsal column =loss fine touch,vibration,proprioceptive ~SENSORY ATAXIA |
B)Syringomyelia | Widening of central canal Damage spinothalamic tract | Loss pain,temp,crude touch =JACKET LOSS (normally cervical region is affected) |
C)Brown Sequard Syndrome | Hemisection of spinal cord | At level of lesion =sensory:loss all sensation =motor :loss all reflexes(LMNL) Below level of lesion =same side:loss the dorsal column sensation + UMNL in motor reflex =oppose side:loss the spinothalamic tract sensation only |
Thalamic Thalamic Syndrome | Complete sensory loss in opposite side | |
Cortical Sensory cortex lesion | | Loss of: Fine touch Stereognosis Proprioceptive sensation Pressure |
Amorphosynthesis | Damage to the somatic sensation on one side | Loss ability to recognize complex object Disturbance of body image |
3 comments:
thanx kt org yg buat dan yg post
very good! syukran bebanyak..
thanks laa ye kpd org yg rajin buat notes ni..sng ah nk ingt wt table mcm ni..:)
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